I really doubt google will become "irrelevant" anytime soon. What most of us nerds forget is that tech products become popular when they solve real life issues for non technical people. We can sit here and debate all day what protocols are better, and which browse is cooler, and why Google is evil, because it will not become irrelevant anytime soon unless there is a better end user product. Happy bashing Google, Facebook, Amazon, etc because no one cares, really. What they care is "how to cook potato soup" showing relevant results, and having their pictures generate likes and their unneeded products delivered tomorrow.